Supplemental vs. Supplementary — What's the Difference?

Something added to complete a thing, make up for a deficiency, or extend or strengthen the whole.

Completing or enhancing something

Provided in addition to what is already present or available to complete or enhance it

A supplementary person or thing.

A section added to a book or document to give further information or to correct errors.

Something added to complete a thing, make up for a deficiency, or extend or strengthen the whole.

A separate section devoted to a special subject inserted into a periodical, such as a newspaper.

A section added to a book or document to give further information or to correct errors.

See dietary supplement.

A separate section devoted to a special subject inserted into a periodical, such as a newspaper.

See supplementary angle.

See dietary supplement.

To provide or form a supplement to.

See supplementary angle.

Acting to supplement.

To provide or form a supplement to.

Appending.

Additional; added to supply what is wanted.

Lacking a regular schedule (as in a supplemental airline).

Something additional; an extra.

Something that supplements or adds to.

Added to complete or make up a deficiency;

A requisition or article of legislation that provides additional funding for a program.

Functioning in a subsidiary or supporting capacity;

Added to supply what is wanted; additional; being, or serving as, a supplement; as, a supplemental law; a supplementary sheet or volume.

Functioning in a subsidiary or supporting capacity;

Added to complete or make up a deficiency;